excellent sheet! almost toooo sticky.. 0 adhesion problems, tough to get prints off at times!
Fits on prusa i3 mk3.
You need a fair bit of Z compression to make the pattern appear on your part.
The finish is very coarse. Was expecting slightly finer pattern. Looks closer to a cast iron finish rather than powder coated.
The PEI provides very strong adhesion with PLA, probably too strong for PETG.
The sheet's thickness is not the most consistent, forcing the fisrt layer to be minimum 0.2mm.
This isn't a replacement for prusa's powder coated sheet.
However, the combination of very strong layer adhesion and a coarser finish would make this better suited very large prints. The pattern will remain visible on larger parts and the layer adhesion will really help with filaments suceptible to warping.